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经营范围
发明名称
BURY OF TRACTION TUBE
摘要
申请公布号
JPS5777784(A)
申请公布日期
1982.05.15
申请号
JP19800154336
申请日期
1980.11.01
申请人
NIHON GURAUTO KOGYO KK
发明人
HINE SHIYUUZOU
分类号
E21B7/10
主分类号
E21B7/10
代理机构
代理人
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地址
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